Senior Java Engineer - Forward Deployment & Modernization

Luxoft; Warszawa; On-site; PLN 180,000 - 280,000; Full time

Job summary

DXC Luxoft is a global IT services and consulting company delivering cutting-edge digital and software solutions. We seek a hands-on Senior Software Engineer to modernize and improve banking applications, with roughly 70% coding, testing, and deployment work.

You will fix security issues, modernize legacy systems, and collaborate with client teams to ensure reliable releases using CI/CD, OpenShift, and Kubernetes.

Qualifications

• Strong hands-on experience with Java/JVM-based applications and Spring.
• Experience writing, debugging, and reviewing production code.
• Strong understanding of automated testing (unit/integration).
• Experience with CI/CD and improving software delivery processes.
• Experience with application modernization, security remediation, or production reliability.
• Confident collaboration with engineers and technical stakeholders.
• Strong English communication skills.

Responsibilities

• Modernize Java and Spring-based applications.
• Write, debug, review, and improve production-quality code.
• Build and improve automated test suites and CI/CD quality gates.
• Remediate security vulnerabilities and analyze dependency risks.
• Upgrade Java, Spring, libraries, runtimes, and platforms.
• Improve production reliability, observability, and resilience.
• Containerize applications and support deployments to OpenShift/Kubernetes.
• Improve CI/CD pipelines, release automation, rollback, and production validation.
• Collaborate with client engineers and promote sustainable engineering practices.
• Take ownership from initial assessment through implementation and handover.

Skills

Java/JVM

Spring

Automated testing

CI/CD

Security remediation

Production reliability

English communication

Tools

Docker

OpenShift

Kubernetes

Liquibase

Flyway

Ansible

Prometheus

Grafana

OpenTelemetry

Dynatrace

Job description

DXC Luxoft is a global IT services and consulting company, part of DXC Technology, delivering cutting-edge digital and software solutions worldwide. We partner with leading financial institutions and global enterprises, helping them transform and scale through modern technology.

Join a global community of engineers and be part of building impactful, modern technology solutions!

About the role:

We're looking for a hands‑on Senior Software Engineer to help modernize and improve business‑critical banking applications.

This is not a purely architectural or management role. Around 70% of your work will involve hands‑on engineering: writing and debugging production code, improving automated tests, fixing security issues, modernizing legacy applications, and making releases safer and more reliable.

You'll work directly with development teams facing real engineering challenges — from vulnerable dependencies and outdated Java runtimes to unstable production systems, legacy middleware, weak test coverage, and slow or risky release processes.

What you’ll do

• Modernize Java and Spring‑based applications
• Write, debug, review, and improve production‑quality code
• Build and improve automated test suites and CI/CD quality gates
• Remediate security vulnerabilities and analyze dependency risks
• Upgrade Java, Spring, libraries, runtimes, and application platforms
• Improve production reliability, observability, and operational resilience
• Containerize applications and support deployments to OpenShift/Kubernetes
• Improve CI/CD pipelines, release automation, rollback, and production validation
• Work directly with client engineering teams and help them adopt sustainable engineering practices
• Take ownership from initial technical assessment through implementation, production deployment, stabilization, and handover

Must have:

• Strong hands‑on experience with Java and JVM‑based applications
• Strong experience with Spring and modern Java development
• Recent experience writing, debugging, and reviewing production code
• Strong understanding of automated testing, including unit and integration testing
• Experience with CI/CD and improving software delivery processes
• Experience with application modernization, security remediation, or production reliability
• Confidence working directly with engineers and technical stakeholders
• Strong communication skills in English

Nice to have:

• TypeScript, Node.js, and the npm ecosystem
• Docker, OpenShift, or Kubernetes
• Legacy application modernization, including IBM WebSphere or Oracle WebLogic
• Major‑version upgrades of Java, Spring, or Spring Boot
• Dependency management and security tools such as Renovate, Dependabot, or Software Composition Analysis tools
• Vulnerability remediation, CVE assessment, and dependency reachability analysis
• Liquibase or Flyway
• Ansible or other configuration‑management tools
• Prometheus, Grafana, OpenTelemetry, Splunk, ELK, Dynatrace, or AppDynamics
• Experience with high‑availability, active‑active, multi‑region, or disaster‑recovery architectures
• Experience with resilience testing and controlled failover exercises
• Experience using AI‑assisted development tools effectively and responsibly